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14

votes

6

answers

3k

views

What is the difference between “vapour” and “gas”?

modified yesterday Nat 325

6

votes

3

answers

1k

views

Why is sea salt coarse?

inorganic-chemistry thermodynamics solid-state-chemistry recrystallization salt

answered 7 hours ago Jeremy 11

9

votes

1

answer

1k

views

How to I neutralize the smell of (VERY) spoiled milk [closed]

organic-chemistry biochemistry smell

answered Apr 19 at 21:24 Mark K 157

7

votes

3

answers

323

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Why use Km in catalytic efficiency?

kinetics enzymes enzyme-kinetics

modified 2 days ago Karsten Theis 22.8k

10

votes

3

answers

380

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What happens inside salt bridges?

electrochemistry

answered 2 days ago Karsten Theis 22.8k

6

votes

2

answers

246

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Balancing reaction between copper and nitric acid given the ratio of formed nitrogen oxides

inorganic-chemistry redox aqueous-solution stoichiometry

modified 2 days ago andselisk♦ 32.5k

5

votes

1

answer

102

views

Basics of wave-mechanical model of atom

quantum-chemistry orbitals atomic-structure

modified 10 hours ago Mathew Mahindaratne 28.3k

8

votes

1

answer

363

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Does iron(VI) fluoride exist?

inorganic-chemistry coordination-compounds transition-metals

answered Apr 17 at 13:05 Oscar Lanzi 28.8k

2

votes

1

answer

153

views

IUPAC name of cyclopentanol derivative

organic-chemistry nomenclature alcohols

answered Apr 17 at 8:58 Loong 410

4

votes

1

answer

183

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Why is 295 nm a good wavelength to check absorbance when testing for aspirin?

uv-vis-spectroscopy

modified Apr 17 at 12:36 Peter Mortensen 263

0

votes

2

answers

85

views

Why can't the energy of an electron exceed 0 eV?

quantum-chemistry electrons atomic-structure

modified 4 hours ago Andrew 6,608

0

votes

2

answers

55

views

After formation of the Grignard reagent, would it react with Et2O or methylpyridinium? [closed]

organic-chemistry

answered 8 hours ago Benzene enthusiast 49

2

votes

3

answers

80

views

Why do I see two peaks for methyl salicylate in my GC–MS spectrum?

organic-chemistry analytical-chemistry chromatography mass-spectrometry

modified 2 days ago user55119 11k

0

votes

1

answer

88

views

Why does ester hydrolysis occur in basic medium

hydrolysis

answered Apr 18 at 11:29 Shoubhik R Maiti 3,785

2

votes

1

answer

64

views

Meaning of the term “Activation of alkene”

organic-chemistry terminology

modified Apr 16 at 5:43 Safdar Faisal 3,567

4

votes

1

answer

58

views

Does syn-dihydroxylation form racemic mixture?

organic-chemistry stereochemistry hydrocarbons optical-properties stereoselectivity

modified Apr 18 at 8:14 Mathew Mahindaratne 28.3k

-1

votes

1

answer

90

views

Does sour milk have something else in it besides lactic acid that gives it such a horrific taste and odor?

acid-base food-chemistry amino-acids

modified yesterday Matthew Christopher Bartsh 111

3

votes

1

answer

119

views

Stabilization of multiple bonds through inductive effects

organic-chemistry reaction-mechanism stability inductive-effect

modified Apr 19 at 7:20 Community♦ 1

4

votes

1

answer

68

views

Determine reaction order and reaction rate

inorganic-chemistry reaction-mechanism kinetics reaction-order

modified Apr 18 at 12:39 C_Lycoris 387

1

vote

1

answer

64

views

Balancing redox reaction of zinc and hot diluted nitric acid

inorganic-chemistry redox aqueous-solution transition-metals pnictogen

modified Apr 19 at 20:01 andselisk♦ 32.5k

0

votes

1

answer

60

views

Conversion of Benzene to 9-Bromo 9,10 Dihydroanthracene

organic-chemistry

modified yesterday Waylander 14.1k

3

votes

1

answer

58

views

If all molecules have basically the same KE at a given temperature, why do lighter isotopes evaporate more readily?

kinetics phase isotope evaporation

modified 15 hours ago matt_black 28.8k

0

votes

2

answers

71

views

Find the structural compound from carbon and proton NMR spectrum

organic-chemistry analytical-chemistry nmr-spectroscopy

modified 19 hours ago andselisk♦ 32.5k

0

votes

1

answer

42

views

Do acetals and hemiacetals give 2,4 DNP test?

organic-chemistry

answered Apr 16 at 9:42 Waylander 14.1k

3

votes

1

answer

53

views

Intermolecular interaction Van Der Waals

intermolecular-forces van-der-waals-behavior

modified 2 days ago andselisk♦ 32.5k

-1

votes

2

answers

50

views

Enthalpy vs. delta enthalpy

organic-chemistry inorganic-chemistry physical-chemistry thermodynamics experimental-chemistry

answered Apr 18 at 15:10 Chet Miller 10.6k

3

votes

3

answers

78

views

Reason for enthalpy being non-zero at constant temperature

physical-chemistry thermodynamics

modified Apr 17 at 2:44 Vinícius Godim 1,173

-2

votes

1

answer

74

views

Turning oil into solid for candles [closed]

organic-chemistry everyday-chemistry food-chemistry

modified 1 hour ago Loc12342 25

-1

votes

1

answer

57

views

Why do terminal alkynes have lower pKa values than non-terminal alkynes?

organic-chemistry acid-base hydrocarbons

modified yesterday andselisk♦ 32.5k

3

votes

1

answer

57

views

To calculate total vapour pressure of a solution

physical-chemistry solutions vapor-pressure liquids

modified 2 days ago Martin - マーチン♦ 40k

2

votes

2

answers

66

views

What type of reaction is this? (Modified organic nucleoside synthesis)

organic-chemistry synthesis

modified 10 hours ago user55119 11k

2

votes

1

answer

39

views

onset of oxidation for cyclic voltammetry

analytical-chemistry cyclic-voltammetry

modified 2 days ago Melina Watson 37

-1

votes

1

answer

64

views

Stability in 3-4 membered conjugated ring [closed]

organic-chemistry stability

modified yesterday green_32 35

2

votes

1

answer

29

views

Iron-II to iron-III change in complex formation

inorganic-chemistry redox coordination-compounds precipitation

modified 2 days ago Martin - マーチン♦ 40k

-1

votes

1

answer

47

views

Why is inversion temperature equal to twice of Boyle's temperature? [closed]

thermodynamics

modified Apr 17 at 20:55 Buck Thorn 15.6k

0

votes

1

answer

58

views

How does evaporation even possible? [duplicate]

physical-chemistry

modified Apr 18 at 13:18 andselisk♦ 32.5k

0

votes

2

answers

44

views

Dependance of heat capacity at constant volume on temperature for solids and liquids

physical-chemistry thermodynamics

answered Apr 17 at 8:53 porphyrin 24.5k

1

vote

1

answer

41

views

Why is the ether linkage breaking here?

organic-chemistry ethers

answered Apr 19 at 13:01 Goarkz 332

0

votes

1

answer

51

views

What (non toxic) light sensitive materials do not burn away at high heat?

photochemistry ceramics

modified 2 days ago DrMoishe Pippik 20.9k

3

votes

1

answer

39

views

Performing XPS on Pt–Ru/C nanoparticles

inorganic-chemistry spectroscopy alloy

modified Apr 16 at 21:44 M. Farooq 24.4k

0

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1

answer

50

views

Are CaOCl2 and Ca(OCl)2 same or different? [duplicate]

inorganic-chemistry

modified Apr 17 at 11:57 Exeplone 103

5

votes

0

answers

49

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Splitting of atomic orbitals due to Stark effect

physical-chemistry quantum-chemistry analytical-chemistry spectroscopy

modified 2 days ago orthocresol♦ 57.7k

-3

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1

answer

49

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Which Half-Reaction to Use?

electrochemistry electrolysis reduction-potential

modified 6 hours ago Martin - マーチン♦ 40k

4

votes

1

answer

29

views

Acid catalyst decarboxylation of 1-carboxyl-tryptoline

reaction-mechanism

answered 11 hours ago Mathew Mahindaratne 28.3k

3

votes

0

answers

59

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What is the structural formula of a monomer of hydroxypropyl methylcellulose?

organic-chemistry biochemistry polymers

modified Apr 16 at 18:12 Antonino Roccaforte 39

-1

votes

0

answers

56

views

What does “Test job not archived” mean? [migrated]

computational-chemistry

modified Apr 17 at 13:19 Martin - マーチン♦ 40k

0

votes

0

answers

54

views

Substituting K2CO3 for KOH in Soap

aqueous-solution ph soap

modified Apr 16 at 18:53 M. Field 17

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